 /*******************************************************************************
  * Copyright (c) 2005, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.core.internal.resources.mapping;

 import org.eclipse.core.resources.*;
 import org.eclipse.core.resources.mapping.*;
 import org.eclipse.core.runtime.IProgressMonitor;

 /**
  * A simple resource mapping for converting IResource to ResourceMapping.
  * It uses the resource as the model object and traverses deeply.
  *
  * @since 3.1
  */
 public class SimpleResourceMapping extends ResourceMapping {
     private final IResource resource;

     public SimpleResourceMapping(IResource resource) {
         this.resource = resource;
     }

     /* (non-Javadoc)
      * @see org.eclipse.core.resources.mapping.ResourceMapping#contains(org.eclipse.core.resources.mapping.ResourceMapping)
      */
     public boolean contains(ResourceMapping mapping) {
         if (mapping.getModelProviderId().equals(this.getModelProviderId())) {
             Object object = mapping.getModelObject();
             if (object instanceof IResource) {
                 IResource other = (IResource) object;
                 return resource.getFullPath().isPrefixOf(other.getFullPath());
             }
             if (object instanceof ShallowContainer) {
                 ShallowContainer sc = (ShallowContainer) object;
                 IResource other = sc.getResource();
                 return resource.getFullPath().isPrefixOf(other.getFullPath());
             }
         }
         return false;
     }

     /* (non-Javadoc)
      * Method declared on ResourceMapping.
      */
     public Object getModelObject() {
         return resource;
     }

     public String getModelProviderId() {
         return ModelProvider.RESOURCE_MODEL_PROVIDER_ID;
     }

     /* (non-Javadoc)
      * Method declared on ResourceMapping.
      */
     public IProject[] getProjects() {
         if (resource.getType() == IResource.ROOT)
             return ((IWorkspaceRoot)resource).getProjects();
         return new IProject[] {resource.getProject()};
     }
     
     /* (non-Javadoc)
      * Method declared on ResourceMapping.
      */
     public ResourceTraversal[] getTraversals(ResourceMappingContext context, IProgressMonitor monitor) {
         if (resource.getType() == IResource.ROOT) {
             return new ResourceTraversal[] {new ResourceTraversal(((IWorkspaceRoot)resource).getProjects(), IResource.DEPTH_INFINITE, IResource.NONE)};
         }
         return new ResourceTraversal[] {new ResourceTraversal(new IResource[] {resource}, IResource.DEPTH_INFINITE, IResource.NONE)};
     }
 }

